Search found 81 matches

by Manny
Nov 06 2017 2:36am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Aprilia RS50 with 4kW QS-motor 17" rim
Replies: 36
Views: 12544

Re: Aprilia RS50 with 4kW QS-motor 17" rim

my intended top speed is 80kmh but i think it will be a bit faster.
by Manny
Nov 03 2017 9:24am
Forum: Motor Technology
Topic: Reading data from my sabvoton controller
Replies: 39
Views: 8409

Re: Reading data from my sabvoton controller

amazing, that looks cool
by Manny
Nov 03 2017 9:18am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Aprilia RS50 with 4kW QS-motor 17" rim
Replies: 36
Views: 12544

Re: Aprilia RS50 with 4kW QS-motor 17" rim

Scottydog wrote:I like this, gather the bike is still a work in progress?
eeuhe yes. I am busy renovating my house so this project is on hold for the moment. it will be finished one day :oops:
by Manny
Sep 04 2017 3:45am
Forum: E-Bike General Discussion
Topic: Use e bike withous PAS?
Replies: 5
Views: 693

Re: Use e bike withous PAS?

the hall sensors connect to the top connector in the controller picture. its a 6 pin plug with 5 connections
by Manny
Aug 28 2017 1:44pm
Forum: Motor Technology
Topic: Reading data from my sabvoton controller
Replies: 39
Views: 8409

Re: Reading data from my sabvoton controller

-Battery voltage (should be no problem since the code you posted is designed for that) yes the battery voltage is in the example. i am wondering if the ratio between the data value an the real battery voltage is the same for all models of the sabvoton. -Phase current, or Battery current, (I think t...
by Manny
Aug 27 2017 12:57pm
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Aprilia RS50 with 4kW QS-motor 17" rim
Replies: 36
Views: 12544

Re: Aprilia RS50 with 4kW QS-motor 17" rim

I started a seperate topic for reading the data from the sabvoton.

https://endless-sphere.com/forums/viewt ... 30&t=90240
by Manny
Aug 27 2017 12:55pm
Forum: Motor Technology
Topic: Reading data from my sabvoton controller
Replies: 39
Views: 8409

Reading data from my sabvoton controller

for my Aprillia project https://endless-sphere.com/forums/viewtopic.php?f=12&t=83316 I want to read data from my sabvoton svmc96080 controller. the usb connector on the sabvoton is not USB, luckily its just serial. the original "programming cable" is a usb to serial converter with a usb connctor on ...
by Manny
Aug 17 2017 2:12am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Aprilia RS50 with 4kW QS-motor 17" rim
Replies: 36
Views: 12544

Re: Aprilia RS50 with 4kW QS-motor 17" rim

i have bin playing with the sabvoton data port. the usb connector is not "USB" its serial the data, and looks like modbus. in a modbus system the master asks the slave (sabvoton) to send a range of data. this is what the pc does when it communicates with the controller. i will probably write a post ...
by Manny
Jul 30 2017 11:23am
Forum: Battery Technology
Topic: TranZX 36V 10Ah battery BMS trouble (?)
Replies: 5
Views: 1010

Re: TranZX 36V 10Ah battery BMS trouble (?)

you want to check the cell voltages. if the pack is 41V than the cells should be all be 4,1V.
by Manny
Jul 25 2017 6:30am
Forum: Battery Technology
Topic: Salvaged EV cells index: Leaf, Volt, Tesla, Zero, etc
Replies: 67
Views: 23167

Re: Salvaged EV cells index, Leaf, Volt, Tesla, etc

I bought a Peugeot ion battery pack. (the same battery as in the Mitsubishi iMiEV and the Citro├źn C-ZERO ) The cells are called LEV50 assembled in to modules. The pack consists of 10 8S modules and 2 4S modules, called LEV50-8 and LEV50-4. Here is a datasheet: https://www.gs-yuasa.com/en/technic/vol...
by Manny
Jun 29 2017 8:31am
Forum: Battery Technology
Topic: 18650 voltage sag
Replies: 7
Views: 1330

Re: 18650 voltage sag

there is resistance between the crocodile clamps and the battery. maybe you can add a wire between the battery and the magnet and measure the real cell voltage.
by Manny
Jun 29 2017 6:43am
Forum: Battery Technology
Topic: 18650 voltage sag
Replies: 7
Views: 1330

Re: 18650 voltage sag

can you post a picture of your test setup?

Resistance can have a big influence on the test results.
by Manny
Jun 01 2017 7:57am
Forum: Motor Technology
Topic: Shunt wires on BLDC controller
Replies: 5
Views: 520

Re: Shunt wires on BLDC controller

the number of parallel wires lowers the resistance.
naeemdotcom wrote:And why are they in a bridge shape and not on the pcb board?
do you mean smd? i think power dissipation. the wires will heat up when passing high current.
by Manny
Jun 01 2017 5:10am
Forum: Motor Technology
Topic: Shunt wires on BLDC controller
Replies: 5
Views: 520

Re: Shunt wires on BLDC controller

hey are a "resistor" used to measure the current flowing through the controller.
by Manny
May 25 2017 5:01am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Aprilia RS50 with 4kW QS-motor 17" rim
Replies: 36
Views: 12544

Re: Aprilia RS50 with 4kW QS-motor 17" rim

inrush limiter: When I whas doing some more testing i heard a sparking noise when switching on the bike. so i disconnected the pre-charge circuit and inspect it. failed_inrush.jpg What probably happened, the mosfet failed do to over stress 3300uF at 112V is a bit to much for the TO-220 mosfet, the ...
by Manny
May 15 2017 3:13pm
Forum: Battery Technology
Topic: Fuse-wire for individual cells, DIY Tesla style
Replies: 186
Views: 40081

Re: Fuse-wire for individual cells, DIY Tesla style

when reading this threat i wondered if it is possible to spot weld copper wire to a cell. and the anser is Yes https://endless-sphere.com/forums/download/file.php?id=215341 its a 0.25mm diameter tinned? copper wire, tested to 5 Amps it got hot but didn't melt. when i tried to pull the wire off it br...
by Manny
May 15 2017 2:57pm
Forum: E-Bike General Discussion
Topic: Active pre-charge/inrush control
Replies: 733
Views: 91233

Re: Active pre-charge/inrush control

In his more complex schematics TP1 is - battery, TP2 is - Load and TP3 is + ? yes correct. I put a 2200uF capacitor on output to reduce inductance of my long battery cables and i am testing using some 12V bulbs as load. what is the total capacitance controller and extra cap's? do you connect the la...
by Manny
May 04 2017 1:23am
Forum: Motor Technology
Topic: Problem with PWM voltage at MOSFET gate in three-phase inver
Replies: 1
Views: 317

Re: Problem with PWM voltage at MOSFET gate in three-phase i

do you measure the top mosfet gate voltage between B1 and E1 in your picture or from - to B1?

i assume you use a gate driver like ir2110 the higher voltage on the top mosfet is good.

maybe you can post a better schematic.
by Manny
Apr 13 2017 7:47am
Forum: Motor Technology
Topic: solved
Replies: 16
Views: 1273

Re: Problem with PWM on MC33035 chip for BLDC motor controll

the drivers may have been damaged when the mosfets failed.

check out this: https://endless-sphere.com/forums/viewt ... 30&t=23350
by Manny
Apr 13 2017 5:50am
Forum: Motor Technology
Topic: solved
Replies: 16
Views: 1273

Re: Problem with PWM on MC33035 chip for BLDC motor controll

this is a inverter ciurcut.

Image

yes the mosfets died because of the inverting problem.

if top is 101 and bottom is 001 the last bits are both on, so you mosfets short out the power supply and thy will die.
by Manny
Apr 13 2017 2:56am
Forum: Motor Technology
Topic: solved
Replies: 16
Views: 1273

Re: Problem with PWM on MC33035 chip for BLDC motor controll

in the schematic in the link. pin 1 2 and 24 go trough the 2n2222 transistors that's the inverter.

for the bottom outputs if the output is low the mosfet will be off.

are the GND on the sturing and power pcb's connected?
by Manny
Apr 13 2017 1:39am
Forum: Motor Technology
Topic: solved
Replies: 16
Views: 1273

Re: Problem with PWM on MC33035 chip for BLDC motor controll

looking at the 33035 datasheat. I think that the highside output needs to be inverted. in the "Figure 24. High Voltage Interface with NPN Power Transistors" Q3 will be on when the 33035's output is low. in this design I found on ES a inverter is placed on the high side output. https://endless-sphere...
by Manny
Mar 30 2017 8:31am
Forum: Battery Technology
Topic: 52v to 12v stepdown
Replies: 5
Views: 603

Re: 52v to 12v stepdown

you could try a 12v mains power supply. with a universal input (80-250 V). probably better to go with higher power model 400W or so.
but no guarantee that it will work